Natural penicillins

What are Natural penicillins?

Natural Penicillins were the first antibiotics used in clinical practice. They are based on the original penicillin- G structure. They inhibit bacterial cell wall synthesis and are generally bactericidal.

Natural penicillins are effective against gram positive bacteria such as staphylococci, streptococci and gram negative bacteria such as meningococci, Treponema, Borrelia and Leptospira.